Correct Answer: B

Rationale: The correct answer is B: All women over age 40 should have an annual mammogram. The American Cancer Society recommends annual mammograms starting at age 40 for women with an average risk of breast cancer. This is based on evidence showing that regular mammograms starting at age 40 help in early detection and improve outcomes. Choice A is incorrect because the recommended age is 40, not 30. Choice C is incorrect as it focuses only on family history, while screening guidelines are based on overall risk factors. Choice D is incorrect because feeling at risk alone is not a sufficient indication for annual mammograms without considering other risk factors.

Correct Answer: B

Rationale: The correct answer is B: Efferent. Efferent neurons transmit signals from the central nervous system to muscles and glands, controlling movement and secretion. Afferent neurons carry signals from sensory receptors to the central nervous system, not towards muscles or glands. "Affective" relates to emotions, not neural function. "Effective" does not describe the direction of signal transmission in the nervous system. Therefore, B is the correct choice.

Correct Answer: B

Rationale: The correct answer is B because during outcome identification and planning, it is crucial to prioritize problems that require immediate attention to ensure patient safety and well-being. By asking what problems need immediate attention, nurses can focus on addressing urgent issues first. Choice A focuses on data clustering for problem identification, choice C is related to defining characteristics for nursing diagnoses, and choice D pertains to documentation, which are important but not directly related to prioritizing immediate problems.

Correct Answer: D

Rationale: Autoimmunity is when the immune system mistakenly attacks the body's own cells. Choice D is correct because it reflects this key feature - the inability to differentiate self from nonself. This leads to the immune system targeting healthy tissues. Choices A, B, and C are incorrect as they do not accurately describe autoimmunity. Choice A refers to endotoxins destroying B cells, which is not the definition of autoimmunity. Choice B mentions overproduction of reagin antibody, which is not related to autoimmunity. Choice C is incorrect as autoimmunity does not involve depression of the immune response but rather an inappropriate immune response.

Correct Answer: C

Rationale: The correct answer is C: Performing a physical examination. This method allows the nurse to gather objective data directly from the patient's body, such as vital signs, appearance, and physical findings. It is essential for establishing a patient's baseline health status and identifying any abnormalities or changes. Reviewing literature (A) is important but not a method of data collection. Checking orders (B) is part of the assessment process but does not involve direct data collection. Ordering medications (D) is a clinical intervention and not a data collection method.